Question about 1998 Honda XR 400R

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Kickstart problem i have xr400r 1996 model n now it is very hard to start .kick is too soft when i kick my kick starter n compressor doesn't compress which i kick

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Hi crazy

Your bike has an automatic de-compression lever that helps when starting. This mechanism will make it feel like the bike has low compression. If it is maladjusted, it may be causing the problem

check here for adjustment procedures to be sure that it is set up correctly.

Other than that, low compression pretty much means top end rebuild.

regards
robotek

Posted on Dec 17, 2008

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YZ426F HARD TO START WHAT IS THE TRICK TO THE COMPRESSION RELEASE TO START THIS BIKE


I have one of these also. Push lightly on kickstart until compression is felt. Pull in the decompression lever and press kickstarter down another 2 inches, release the decompression lever, and and then let up on the kickstarter to get a full swift kick. It seems like alot to do, but once you get the hang of it, it really is easy. Also, I upgraded the copper spark plug (NGK CR8E) to an Iridium one (NGK CR8EIX) and it made it much easier also.

Also, I have heard that an exhaust cam from an ' 03 YZ450F has the same cam lobes, but with the built in auto-decompress will swap straight into this bike, I was looking into doing this with mine, but just got so good with the above procedure I did not waste the money on it.

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My 1996 xr 250r wont start drom the kickstart but it will start if you pushstart it can any one help me??


Hi
If the kick-start is seized or lacks resistance when you try to turn it then the mechanism will have to be investigated
If the kick-start feels normal, the spark is good when kicking her over & the performance is well down then there is probably a lack of compression

Ride Safe
Bike-Doc

Sep 29, 2010 | 1996 Honda XR 250 R

1 Answer

I try to kick start it and it just backfires, and then right after there is so much compressions it just about takes my leg off


hi,this should be fitted with a decompessor,if it is not,then try this,gently turn the bike over with the kicksart untill you feel the piston coming up to top dead centre (you will feel the compression rising)thenlet the kickstart return to its normall position,now give the kickstart a good healthy kick and the bike should fire up,if you think a 450 is hard work,wait till you try a 500 velocette with no decompessor if you dont get those things right they will either fire you over the handle bars into the workshop bench or break your leg in the process or worse a combination of both the above..good luck..hope this helps...cheers

Mar 31, 2010 | 2006 KTM 450 SX

1 Answer

The bike wont start! seems to have good compression, and fire. the timimg mark is lining up at tdc but with a shot of starting fluid i have gotten a flame thru the carb! oh, and the valves have been...


If your XR600 has ever sat for more than just a few months, there's a very good chance that the carburetor is plugged with fuel varnish. This means that the carb will have to be disassembled and cleaned.
A big four cycle engine like your's may "feel" like it has good compression, but it may not have what it takes to start and run. Check the compression. With the throttle wide open and a few good kicks of the starter, you've got to see at least 140 psi of compression. Anything below that and it isn't going to start or run reliably. If the compression is low, the first thing to do is re-check the valve tappet clearances. Insufficient tappet clearance will cause low compression. Also make sure the kickstart-actuated compression release is not hanging up and causing compression loss after the kick start lever is returned to its parked position. If the valves are properly adjusted and the compression is still low, then internal engine repairs are needed.

Dec 08, 2009 | 1985 Honda XR 600 R

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I have a ktm 640lc4 (2002) it has a leaver in front of the clutch leaver. what is this for?


Is it a kick start or does it have a kick starter in addition to the electric start? If so then it is a decompression lever which you pull in when you are trying to start the bike by kick start. Hold in the lever and try the kickstart vs not holding the lever. You'll feel a huge difference.

Dec 03, 2009 | 2002 KTM LC4 640 Adventure

1 Answer

992 kx 250 wont crash start just locks up and kickstarter doesnt work it free spins to a point then gets to a hard point 1992 kx 250


Don't know this bike but I've only owned kick start HD'd.They work the same.The free easy crank on the kicker is the cylinder geting to the point of compression.The hard point is when you're there.Use your power and kick it!.Repeat if it don't start get to the hard point and kick it!..Make sure your gas valve is open and key on.Don't give it too much gas.If it don't start it's either Gas or Spark.Good Luck.

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1 Answer

2005 ktm 525 sx is hard to kickstart , is there any trick to maket it more easy to kickstart?


Yes, there is a proper way to start the engine. Four controls are on your bike to assist in starting.
  • The choke, used when the engine is cold. Pull the knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
  • The throttle, used to prime the cylinder.
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Now release the de-compression lever. Give the throttle a 1/4 turn then let it snap closed. A diaphragm in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. Now give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from the kick lever. This happens in the case of a misfire, aka > backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), until the bike starts. A good battery, a clean spark plug, a clean carb and clean air filter will also aid in starting.

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3 Answers

Yz 250 wont kickstart


Hi!
You obviously look after your machine and very sensible when laying up, however as you are probably aware 2 strokes rely heavily on compression, A. to produce excellent combustion and B. to draw fuel into the chamber. So when you try kick starting you can't get enough revolutions to draw the correct amount of fuel into the cylinder, where as you push start you constantly turn over the engine increasing compression slightly and bingo it fires.
Can you remember how when kick starting it before this problem the feel on resistance when kicking over? has it now become a lot easier? if so you possibly have worn or broken compression piston rings.
A compression test will reveal this, I hope this sorts your query?
Press the Blue button please for my FREE effort,
Thank You!
Paul 'W' U.K.

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1 Answer

GasGas 280 Pampera Kickstart


  1. Remove the bolt from the kick start(where it attaches to the motor)
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  3. move it forward a few shaft teeth
  4. slide kicker back on
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Feb 02, 2009 | 2004 Gas Gas Pampera 280

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